Home / 105,526.08-145,620-57,769.92

Finding the Fourth Proportional to 105,526.08, 145,620 and 57,769.92

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Solution

The fourth proportional to 105,526.08, 145,620 and 57,769.92 is: 79,719.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,526.08 : 145,620 = 57,769.92 : x
  2. Step 2: Convert to fraction form
    105,526.08/145,620 = 57,769.92/x
  3. Step 3: Cross multiply
    105,526.08x = 145,620 × 57,769.92
  4. Step 4: Simplify right side
    105,526.08x = 8,412,455,750.40
  5. Step 5: Solve for x
    x = 8,412,455,750.40/105,526.08
  6. Step 6: Final answer
    x = 79,719.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.